A portable subway maintenance lighting device

Abstract

This invention relates to the field of subway maintenance technology, specifically disclosing a portable subway maintenance lighting device. The device includes a vehicle body with an elastic walking wheel assembly on its side. The vehicle body travels on the subway track via the elastic walking wheel assembly. A brake pad maintenance device and a lighting and imaging device are located on the upper side of the vehicle body. A longitudinal beam is fixedly connected to the vehicle body, and an obstacle-crossing device is slidably connected to the longitudinal beam. The beneficial effects of this invention are: when the walking wheel of this invention is about to reach the position of a subway car wheel, a hydraulic cylinder drives a trajectory changing plate to move and fit against the track. The elastic walking wheel assembly can move along the trajectory changing plate and cross the wheel, eliminating the need for maintenance personnel to disembark and move the device. This solves the problem in the prior art where maintenance vehicles must stop and move when encountering subway car wheels, enabling continuous operation across subway car wheels and greatly improving the efficiency and continuity of emergency maintenance.

Description

Technical Field

[0001] This invention relates to the field of subway station drainage technology, and more particularly to a portable subway maintenance lighting device. Background Technology

[0002] As the core carrier of urban public transportation, the operational safety of subway vehicles is of paramount importance. Running gear components such as bogies and wheel brake pads are key to vehicle safety and require regular inspection and maintenance. In current technology, subway vehicles typically travel to designated maintenance points (such as depots or maintenance hangars) for static or dynamic maintenance according to a schedule. However, during subway operation within tunnels, sudden malfunctions or abnormal conditions may prevent them from continuing to designated maintenance points. In such cases, maintenance personnel need to rush to the scene with portable equipment for emergency repairs. Current portable subway maintenance operations, especially for inspecting the bogies and brake pads under the vehicle, usually involve maintenance personnel lying prone on a maintenance vehicle, which is then propelled along the tracks by another colleague or other power source to observe and illuminate the underside of the vehicle. When the maintenance vehicle travels along the tracks and approaches the wheels of the subway vehicle being inspected, it cannot directly cross over them because the wheels occupy space above the tracks. At this point, maintenance personnel must dismount the maintenance vehicle, manually move it off the track, around the wheels, and then place it back on the track before continuing maintenance on another part of the vehicle. This process significantly increases the workload for maintenance personnel, disrupts the continuity of maintenance work, and reduces the efficiency of emergency repairs. Especially when multiple inspections require crossing multiple wheels, the repeated moving operations are time-consuming and labor-intensive, severely impacting the speed of troubleshooting and repair. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a portable subway maintenance lighting device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A portable subway maintenance lighting device includes a vehicle body with an elastic walking wheel assembly on its side, allowing the vehicle body to travel on the subway track via the elastic walking wheel assembly. A brake pad maintenance device and a lighting and imaging device are located on the upper side of the vehicle body. A longitudinal beam is fixedly connected to the vehicle body, and an obstacle-crossing device is slidably connected to the longitudinal beam. The obstacle-crossing device includes a sliding seat that can reciprocate along the longitudinal beam. Two hydraulic cylinders are mounted on the sliding seat, and a trajectory-changing plate is provided at the extension and retraction ends of the hydraulic cylinders. When the vehicle body needs to cross the wheels of a subway car while traveling on the subway track, the sliding seat moves to a position opposite to the wheels, and the hydraulic cylinders push the trajectory-changing plate to fit against the subway track. As the vehicle body moves forward, the elastic walking wheel assembly travels along the trajectory-changing plate and crosses the wheels.

[0005] Preferably, the telescopic end of the hydraulic cylinder is fixedly connected to the guide seat, the guide seat is slidably connected to the fine-tuning frame, and the trajectory changing plate is fixed to the fine-tuning frame.

[0006] Preferably, the trajectory changing plate is provided with a clearance groove on the side away from the hydraulic cylinder, and guide slopes are provided at both ends of the trajectory changing plate facing the hydraulic cylinder.

[0007] Preferably, the lighting and shooting device includes a guide rail detachably connected to the vehicle body, a slider slidably connected on the guide rail, an illumination lamp and a first camera mounted on the slider, and a driving device mounted on one side of the slider for driving the slider to reciprocate on the guide rail.

[0008] Preferably, the elastic walking wheel assembly includes a slide bar, a slide groove is provided on one side of the vehicle body, the slide bar is slidably connected in the slide groove, a spring is fixedly connected between the bottom of the slide groove and the slide bar, and a walking wheel is installed at the other end of the slide bar.

[0009] Preferably, the brake pad maintenance device includes a power box, a swing rod rotatably connected to one side of the power box, an electric telescopic rod fixedly connected to one side of the swing rod, a mounting base installed at the telescopic end of the electric telescopic rod, a searchlight and a second camera installed on the mounting base, and a power unit installed inside the power box, which is used to drive the swing rod to swing.

[0010] Preferably, a maintenance toolbox is provided on the upper side of the vehicle body.

[0011] The beneficial effects of this invention are as follows: When the traveling wheel of this invention is about to reach the position of the subway car wheel, the hydraulic cylinder drives the trajectory changing plate to move and fit with the track. The elastic traveling wheel assembly can move along the trajectory changing plate and cross the wheel without the need for maintenance personnel to get off the vehicle and move the device. This solves the problem in the prior art that maintenance vehicles must stop and move when they encounter the wheels of subway cars, and realizes continuous operation across the wheels of subway cars, which greatly improves the efficiency and continuity of emergency maintenance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the basic structure of the present invention; Figure 2 This is a schematic diagram of the basic structure of the flexible walking wheel assembly; Figure 3 yes Figure 1 Enlarged view of part A; Figure 4 This is a diagram showing the usage state of the present invention; Figure 5 This is another usage state diagram of the present invention. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0014] like Figures 1-5 As shown in the figure, the portable subway maintenance lighting device disclosed in this embodiment includes a vehicle body 1, which serves as the mounting base for the overall device. To facilitate the movement of the vehicle body 1 on the subway track 100, an elastic traveling wheel assembly 2 is provided on the side of the vehicle body 1. The vehicle body 1 moves on the subway track 100 via the elastic traveling wheel assembly 2. The elastic traveling wheel assembly 2 includes a sliding rod 21. A groove is provided on one side of the vehicle body 1, and the sliding rod 21 is slidably connected within the groove. A spring is fixedly connected between the bottom of the groove and the sliding rod 21 (not shown in the figure). A traveling wheel 22 is mounted on the other end of the sliding rod 21. The traveling wheel 22 has a built-in traveling motor, which is prior art and will not be described further. The traveling wheel 22 is stepped, meaning the diameter of the upper end of the traveling wheel 22 is larger than the diameter of the lower end. This stepped traveling wheel 22, under the compression force of the spring, fits snugly onto the subway track 100. The built-in traveling motor of the traveling wheel 22 allows the vehicle body to move back and forth on the subway track 100.

[0015] A longitudinal beam 3 is fixedly connected to the vehicle body 1. In this embodiment, the longitudinal beam 3 is fixed to the lower side of the vehicle body 1. An obstacle-crossing device 4 is slidably connected to the longitudinal beam 3. The obstacle-crossing device 4 includes a sliding seat 41, which can reciprocate along the longitudinal beam 3. A traveling device is mounted on one side of the sliding seat 41. The traveling device is existing technology and enables the sliding seat 41 to reciprocate along the longitudinal beam 3. Two hydraulic cylinders 42 are mounted on the sliding seat 41. The extension and retraction ends of the hydraulic cylinders 42 are provided with trajectory changing plates 45. During operation, when the vehicle body 1 needs to cross the wheels 300 of the subway car 200 while traveling on the subway track 100, the sliding seat 41 moves to a position opposite to the wheels 300. The hydraulic cylinder 42 then pushes the trajectory changing plate 45 to engage with the subway track 100. As the vehicle body 1 moves forward, the traveling wheels 22 travel along the trajectory changing plate 45. At this time, the sliding rod 21 compresses the spring and slides into the groove to avoid obstacles. When the wheels 300 pass over the trajectory changing plate 45, the sliding rod 21 extends again under the action of the spring, allowing the traveling wheels 22 to continue traveling along the subway track 100. This allows for continuous obstacle-crossing operations.

[0016] In a preferred embodiment of the present invention, a clearance groove 47 is provided on the side of the trajectory changing plate 45 away from the hydraulic cylinder 42. The clearance groove 47 is correspondingly provided with the wheel 300. When the trajectory changing plate 45 contacts the subway track 100, the wheel 300 is exactly located in the clearance groove 47. Guide slopes 46 are provided at both ends of the trajectory changing plate 45 facing the hydraulic cylinder 42. The guide slopes 46 enable the traveling wheel 22 to smoothly transition between the trajectory changing plate 45 and the subway track 100, thereby improving the stability of the travel.

[0017] In a preferred embodiment of the present invention, to prevent the trajectory changing plate 45 from failing to align with the clearance groove 47, the trajectory changing plate 45 is designed to be floating, specifically as follows: the telescopic end of the hydraulic cylinder 42 is fixedly connected to the guide seat 43, and the fine-tuning frame 44 is slidably connected to the guide seat 43. The trajectory changing plate 45 is fixed to the fine-tuning frame 44, and the two sides of the clearance groove 47 are set as inclined guide surfaces. Thus, even if the clearance groove 47 of the trajectory changing plate 45 is slightly offset from the position of the wheel 300, when the clearance groove 47 contacts the wheel 300, under the action of the inclined guide surfaces, the fine-tuning frame 44 slides along the guide seat 43, thereby adaptively adjusting the position of the trajectory changing plate 45.

[0018] A brake pad inspection device 6 and an illumination and imaging device 5 are provided on the upper side of the vehicle body 1. The illumination and imaging device 5 includes a guide rail 51, which is detachably connected to the vehicle body 1. The detachable connection method is existing technology and will not be described in detail here. A slider 52 is slidably connected to the guide rail 51. An illumination lamp 53 and a first camera 54 are mounted on the slider 52. A drive device is mounted on one side of the slider 52, which drives the slider 52 to move back and forth on the guide rail 51. In this way, by moving the slider 52, the illumination lamp 53 and the first camera 54 can be moved along the length of the vehicle body, thereby realizing continuous illumination and image recording of different positions on the bottom of the vehicle, expanding the inspection range. At the same time, after the guide rail 51 is removed, the staff can lie flat on the vehicle body 1 to repair the parts that need repair. A repair toolbox 7 is provided on the upper side of the vehicle body 1. The repair toolbox 7 is used to store repair tools such as wrenches and screwdrivers for the convenience of the staff.

[0019] The brake pad inspection device 6 includes a power box 61. A swing arm 62 is rotatably connected to one side of the power box 61, and an electric telescopic rod 63 is fixedly connected to one side of the swing arm 62. A mounting base 64 is installed at the telescopic end of the electric telescopic rod 63. A searchlight 65 for localized high-intensity illumination and a second camera for detailed inspection are mounted on the mounting base 64. The second camera is not shown in the figure. The power box 61 contains a power unit that drives the swing arm 62 to swing horizontally. Through the wide-range swing of the swing arm 62 and the extension and retraction of the electric telescopic rod 63, the searchlight 65 and the second camera can be flexibly deployed to key parts such as the brake pads under the vehicle, enabling close-up, multi-angle observation.

[0020] To further improve the accuracy of determining whether the brake pads 400 of wheel 300 need maintenance, in this embodiment, a signal target point 48 is fixedly connected to one side of the trajectory changing plate 45, and a signal device is installed on the underside of the vehicle body 1 (not shown in the figure). When the signal device is aligned with the signal target point 48, the brake pad maintenance device 6 is in the optimal position to inspect the brake pads 400. The signal device controls the traveling wheel 22 to stop moving and simultaneously controls the brake pad maintenance device 6 to operate and inspect the brake pads 400. How the signal device controls the traveling wheel 22 and the brake pad maintenance device 6 is prior art and will not be described further here.

Claims

1. A portable subway maintenance lighting device, characterized in that: The system includes a vehicle body (1), on which a flexible walking wheel assembly (2) is provided on the side. The vehicle body (1) travels on the subway track (100) via the flexible walking wheel assembly (2). A brake pad inspection device (6) and a lighting and shooting device (5) are provided on the upper side of the vehicle body (1). A longitudinal beam (3) is fixedly connected to the vehicle body (1). An obstacle-crossing device (4) is slidably connected to the longitudinal beam (3). The obstacle-crossing device (4) includes a sliding seat (41). The sliding seat (41) can reciprocate along the longitudinal beam (3). (41) is equipped with two hydraulic cylinders (42). The extension and retraction end of the hydraulic cylinder (42) is provided with a trajectory changing plate (45). When the car body (1) needs to cross the wheels (300) of the subway car (200) while walking on the subway track (100), the sliding seat (41) moves to a position opposite to the wheel (300). The hydraulic cylinder (42) pushes the trajectory changing plate (45) to fit with the subway track (100). When the car body (1) moves forward, the elastic walking wheel assembly (2) will walk along the trajectory changing plate (45) and cross the wheel (300).

2. The portable subway maintenance lighting device according to claim 1, characterized in that: The telescopic end of the hydraulic cylinder (42) is fixedly connected to the guide seat (43), and the fine-tuning frame (44) is slidably connected on the guide seat (43). The trajectory changing plate (45) is fixed to the fine-tuning frame (44).

3. The portable subway maintenance lighting device according to claim 1, characterized in that: The trajectory changing plate (45) is provided with a clearance groove (47) on the side away from the hydraulic cylinder (42), and guide slopes (46) are provided at both ends of the side of the trajectory changing plate (45) facing the hydraulic cylinder (42).

4. A portable subway maintenance lighting device according to claim 1, characterized in that: The lighting and shooting device (5) includes a guide rail (51) which is detachably connected to the vehicle body (1). A slider (52) is slidably connected on the guide rail (51). An illumination lamp (53) and a first camera (54) are mounted on the slider (52). A driving device is mounted on one side of the slider (52). The driving device is used to drive the slider (52) to move back and forth on the guide rail (51).

5. A portable subway maintenance lighting device according to claim 1, characterized in that: The elastic walking wheel assembly (2) includes a slide rod (21), a slide groove is provided on one side of the vehicle body (1), the slide rod (21) is slidably connected in the slide groove, a spring is fixedly connected between the bottom of the slide groove and the slide rod (21), and a walking wheel (22) is installed at the other end of the slide rod (21).

6. A portable subway maintenance lighting device according to claim 1, characterized in that: The brake pad repair device (6) includes a power box (61), a swing rod (62) is rotatably connected to one side of the power box (61), an electric telescopic rod (63) is fixedly connected to one side of the swing rod (62), a mounting base (64) is installed at the telescopic end of the electric telescopic rod (63), a searchlight (65) and a second camera are installed on the mounting base (64), and a power device is installed inside the power box (61) to drive the swing rod (62) to swing.

7. A portable subway maintenance lighting device according to claim 1, characterized in that: A maintenance toolbox (7) is provided on the upper side of the vehicle body (1).

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